Heel gluing machine



June 12, 1945. I w. A. TH-UM I 2,378,256

HEEL GLUING MACHINE Filed March 20, 1942 4 Sheets-Sheet 1 Wk 25A 3 Ma June 12, 1945.

W. A. THUM HEEL GLUING MACHINE Filed March 20, 1942 4 Sheets-Sheet 2 June 12, 1945. v w. A. 'THUM I 2,378,256

HEEL GLUING MACHINE Filed March 20, 1942 4 Sheets-Sheet 3 I N VEN 7 0 Patented June 12, 1945 UNITED STATES PATENT OFFICE HEEL GLUING MACHINE Walter A. Thum, St. Louis, Mo.

Application March 20, 1942, Serial No. 435,533

My invention relates generally to shoe machinery and has more particular reference to a machine for the application of glue to the cup of a shoe-heel.

' The shoe heels which my invention is intended to Work upon are made with a cup or hollowed out portion to fit the contour of the heel-seat of the shoe to which the heel is to be glued in the process of making the shoe. This cup or recess,

which is relatively shallow, opens at full depth at the front or breast of the heel but thins out to the side and rear edges or are of the heel. Making an effective junction of the heel with the-shoe, it is desirable that the cup should be'glued uniformly over its central area, while leaving the .margin of the arc of the heel free of the glue for preventing extrusion of the glue in an unsightly manner when the heel and the shoe are clamped together. With the foregoing in mind,'my'invention has for one of its objects the provision of a machine for the application of glue to the cup of a shoe-heel, wherein a film of the glue covers the-central portion of the heel-cup, while leaving a narrow band or margin of unglued surface around the arc of the cup of the heel.

It will also be readily seen that a merewiping process for the gluing operation is quite impracticable if such a glue-free'margin is to be maintained around the arc of the heel, more especially along the rear side thereof. My invention, therefore, has for a further object the provision of a machine for the application of glue to the cup of a shoe-heel wherein the side and rear marginstion;

Figure 2 is an enlarged fragmentary detail view taken approximately along the line 22 of Figure 9;

Figure 3-is a top plan view of a heel showing the heel-cup with a film of glue applied thereto according to my inventionj Figure 4 is a top plan view of the machine, the housing being removed and other partsbroken away, the several parts being shown in normal or initial heel-receptive position;

Figure 5 is a fragmentary detail sectional view taken approximately along the line 5-5 of Figure 4;

Figure 6 is a side elevational view of the machine with the housing in place, parts thereof being shown broken away and other parts in section;

Figure 7 is a sectional View taken approximately along the line 11 of Figure 6, but showing the several parts of the machine in positions corresponding to Figure 8;

Figure '7 is a fragmentary view with the heelrest in its elevated position between the arms, said heel-rest being in horizontal alignment with the bight of the grooves;

Figure 8 is an enlarged fragmentary detailed sectional view, showing the carriage in lowered position with the closed end of the cup of a supported heel in glue-printing engagement with the glue transfer roller, other parts of the machine being broken away;

Figure 9 is a top plan view of the machine illustrating the heel with the masking and supporting means looked around the periphery thereof Figure 10 is a side elevational view of the machine with the housing in place and partly broken away for disclosing the lock in retracted or released position; and 1 Figure 11 is a fragmental sectional View, illustrating the carriage during movement to its elevated position.

Preliminary to a description of the machine, attention is directed to Figure 3, which, as will be understood by those skilled in the art, is an illustration, or top plan view, of the hollowed-out cup at of a heel H. The rear side or closed end of the cup at is bounded by the raised lip or are e, f, g, of the heel H, while the front side or open end of the cup a is bounded by a raised lip on merely its two sides e, g, the hollow of the cup being out through the front face h of the heel. In accordance with my invention, a film of glue b is shown applied to the heel H in such a manner as to provide a glue-free margin 0 between the glue band the are e, f, y. of the heel-cup a.

Referring now more in detail and by reference characters to the drawings, which illustrate a preferred embodiment of my invention, the machine, generally. designated A, includes a base I mounted, as by clamps 2, on the respective horizontal portions 3'of a pair of laterally spaced floor'stands whose respective vertical members or legs 4 have floor flanges 5 for engaging a floor, as 6.

A foot pedal 1 is fulcrumed, as at 8, on one of the legs 4' of the stand, and has a link connection 9 with a crank mounted on a shaft l| journaled in bearings |2 mounted on the horizontal portions 3 of the stand. The shaft II is disposed transversely in front of the machine A and carries a downwardly presented arm l3, from which is suspended a counterweight M, and an upwardly presented arm |5 to which is pivoted a linkor pitman l6 adapted normally to extend rearwardly from the arm l5 over the machine A.

Around the periphery of the base of the machine A, is suitably seated a rubber sealing strip l1 adapted to be normally engaged in turn by .the continuous bottom face, as N3, of the respective side and end walls of a machine housing or inverted box-like cover l9. Adjacent the bottom margin of the rear end wall of the cover I9, is a lug 20 adapted for engagement by a hook 2| on the base I, and adjacent the bottom margin of the front end wall of the cover I9, is another lug 22 adapted for engagement by a clamp 23 pivoted on the base I, whereby the cover |9 may I be compressibly, though removably mounted on the base I in sealing engagement with the rubber strip H, as best seen in Figures 1 and 7.

In its top wall, the cover |9 is provided with an aperture 24, and around the aperture 24 is likewise suitably seated a rubber sealing strip 25 adapted to be engaged by a lid 26 hingedly supported, as at 21, on the cover IS; the cover l9 has a back-stop 28 which supports the lid 26 in its open position. Hinged on the frontal top side of the cover I9, is a clamp 29 for engaging a lug (not shown) on the lid 26, whereby the same may be compressibly, though removably, engaged sealingly on the rubber strip 25 for closure of the aperture 24 subsequent to removal or swinging back of the pitman l6, as occurs when the machine is not in use.

Preferably formed integrally with the machine,

base is a glue basin B having spaced parallel side walls 39 and end walls 3|. One of the side walls has a spout 32 through which a supply of suitable liquid adhesive or glue 33 is introduced into the basin B when preparing the machine for use, as best seen in Figures 6 and '7.

Mounted on each of the basin side walls 30, as best seen in Figure 7, is a side frame 34, and, in turn, mounted on the side frames 34 are respective parallel channel-shaped side frames or rails 35, 36; the rail 35 only has on its upper flange or .side 31 a stop 38, as best seen in Figures 2 and 4, for a purpose presently appearing.

A front cross-member 39 connects the side rails 35, 36, and forms a front closure or stop 40 for the respective channels or ways 4| of the said side frames 35, 36; also connecting the rear ends of the side-rails 35, 36, is a cross member 42 forming rear closure-stops 43 for the respective ways 4|. The member 42 carries a forwardly projecting platform 44 located in a central position between the rails 35, 36, for a purpose presently appearing and as best seen in Figure 4.

Intermediate its ends, the top flange 31 of each of the respective side rails 35, 36, is provided with a slot or cut-out 45, and near its rear end each flange 31 is provided with a pair of spaced slots 46, 41, with a flange-portion or shelf '48 therebetween, all of said slots 45, 46, 41, communicating the top side of the flange 3! with the way 4| therebelow.

Mounted adjacent the forward margin of the rearmost slot 41, is a swingable member or dog 49 carried by a pintlev 50 fulcrumed through the adjacent side wall of the rail 35 or 36, as the case may be, and biased by means of a suitable torsional member or spring 5| for causing the dog 49 to normally incline or depend obliquely rearwardly through the slot 41 into engagement with the floor of the way 4|. Upstanding from each of the rails 35, 36, is an ear 52 carryin a pintle 53, on which is swingably mounted another dog or flap-member 54 adapted to have its free end normally rest on the shelf 48 in substantial alignment with the rear margin of the slot 46. The ear 52' carries a lateral stop 55 designed to limit the upward swing of the dog 54, all as best seen in Figures 4 and 6.

C designates a reciprocable carriage having a frame which includes laterally spaced side bars 56, 56', connected, preferably integrally, by a rear cross-bar 51. Upstanding from the inner margin of each side bar 56, 56, is a rib 5B, and mounted on the ribs 58 near the front of the carriage C, is a transverse bridge or cross-bar 59. 1 Each side bar 56, 56', has a depending lug 66 adjacent its front end; each lug 60 carries an axle 6| on which is journaled a roller 62; at its rear end, each side bar 56, 56, also has a depending lug 63, and through the pair of lugs 63 extends a single axle 64, on the projecting ends of which are journaled respective rollers 65. Each respective pair of rollers 62, 65, on a side of the carriage C is. adapted to work in the adjacent Way 4|, whereby the carriage C is supported for longitudinal movement parallel with and between the rails 35, 36.

. Attached, preferably integrally, to the center of the rear cross-bar 51 of the carriage C is a pintle block 66, and upstanding from the crossbar 51 in front of the pintle block 66 is a pair of spaced pintles 61. The pintles 61 swingably support a pairof arcuate so-called clasping arms 68, the block 66 being suitably recessed to receive the hubs of the arms 68, a cover-plate 69 being rempvably attached to the block 66 for retaining the arms 68 on the pintles 61. The free ends 10 of the arms 68 extend forwardly into the space between the carriage side bars 56, 56', each armend 10 being provided on its inner face with a channel I l, as best seen in Figure 7 A flexible and elastic U-shaped member, hereinafter referred to as the work-support D, and composed of resilient material,v as rubber or the like, has its respective free ends mounted in the also respective channels ll of the clasping arms 68; the bight d of the work-support D is anchored to the pintle block 66 by being engaged between a hook 12 on the block 66 and another hook 12' on the cover-plate 69, as best seen in Figure 8. As will presently more fully appear, the bight d forms a so-called rear rest for disposing the work or heel H in a defined position on the carriage 0.

Provided on the inside face of the member D is a longitudinally continuous V-shaped groove 13 adapted to receive the heel-edge or are e, f, g, of the heel H. The lower wall of the groove 13 is formed by a coextensive rib or masking member d, as best seen in Figures 7 and 7. As will presently more fully appear, the member D is adapted to embrace the are e, f, g, responsive to heel-clasping movement of the arms 68, whereby the heel H is gripped or supported by and between the V-shaped walls of the groove 13, while concurrently therewith the rib d is extended inwardly from the arc of the heel so as to mask the margin 0 of the heel-cup a.

E designates a slide or wedge-operator,- which includes a cross-head I4 disposed transversely on and at the rear of, the carriage C, and a pair each wedge I5 being opposed to one of the clasping arms, as best seen in Figure 4.

Attached to' each wedge I5 is a slipper-bar I6,

which extends forwardly past the adjacent arm 68 for working in a guide or recess 'I'I formed in the corresponding rib 58 of the carriage-frame,-

whereby the slide E is guided for'reciprocable longitudinal movement relative to the clasping arms-68, for a purpose soon appearing, and as best seen in Figures 4 and 7.

At each end of the cross-head I4 is a depending ear I8, to which is pivotally connected, as at I8, one part 88 of a tension responsive member or composite link 888I, of which the part 8| is shiftable or extensible relatively to the part 88,

although a suitable tensional member or spring 82 serves to normally bias the part 8| in retracted position relative to the part 88.

, Each link 888I extends forwardly on the carriage C alongside a corresponding one of the ribs 58 and has pivotal connection, as at 83, with respective arms 84, 84', located at opposite ends of a, crank-shaft 85 journalled in suitable bearings 86' on the bridge-piece 59 of the carriage C, the crank-shaft 85 having a crank 81 intermediate the bearings 85, which crank 81 is normally disposed in an approximately. vertical position relative to the carriage C, as best seen in Figure 6.

The crank 81 is adapted to be removably engaged in a groove 88 provided in the free end or head 89 of the pitman I6; a keeper-plate 98 is removably attached to the head 89 as by a capscrew 9| for retaining the crank 81 in the notch 88. A post 92, upstanding from the front end of the carriage C, serves as a support for the pitman-head 89, when the latter is in its normal position, as best seen in Figure 6.

Projecting laterally from the front end of the of swingable movement of the adjacent crankarm, as 84, is a latch-head 94 having a stem 95 slidably mounted in a bore 86 in the lug 93 with a tensional member or spring 91 mounted on the stem 95'between the lug 93 and the head 94 for normally yieldingly biasing thehead 94 in, spaced relation to the lug 93, a retainer, as at 98, being provided for preventing the escape of the stem'95 from the bore 96.- On the latch-head 94, is an ear 98 projecting over the adjacent side rail 35 and adapted, on rearward movement from initial position of the carriage C, to engage the stop 38 on the rail 35, for a purpose later appearing, all as will best be understood from Figures 2 and 4.

Pivotally mounted, as at I88, on a shaft I8I extending between and supported by the main frame side-members 34, is a lever I82 having a laterally and upwardly extended arm I83 carrying a, toe I84 disposed normally above the carriage side bar 56', so as to be in the path of swinging movement of the adjacent crank-arm, as 84.

A rod or link I 85, attached to the lever I82, has pivotal connection, as at I86, with a latch-lever I81 fulcrumed at its lower end on a shaft I88 which extends transversely of the machine berib 58 of the side bar 56 of the carriage C is a lug.93. Slidable on the side bar 56 in the rear of the lug 93, and normally disposed in the path sionally connected, as by av spring II8, with the lever I82; The upper end of the latch-lever I8'I is provided with a detent III, asbest seen in Figure 6.

vA shaft H2, preferably journaled. in suitable bearings II3 formed in the joint between the respective side rails 35, 36, and the side frames 34,

extends likewise transversely of the machine- 'II4 extend forwardly in the machine and are connected by a cross-beam II5 parallel with the shaft II2. Stop-brackets II6 extend inwardly from the respective side frames 34 and serve to support the beam I I5 when in its lowermost position, but when the beam H5 is in itsinitial or upper position, it is engaged with the detent II I, whereby the lifter F is releasably supported in such position by the latch-lever I81.

Upstanding from each crank I I4, is an arm I I1 carrying at its upper end a lateral pin I I8 adapted to work in a way II8 extending longitudinally on the under side of the adjacent one of the carriage side bars 56, 56', the ways H9 being open at their forward ends for ease in mounting the carriage C in 'the machine.

Upstanding from the beam I I5, is a yoke I28 of an inverted U-shape, the horizontal portion or bight of the yoke I28 forming a guide rod for a pair of opposingly slidable wedge-shaped members or so-calledfront heel-rests I2I, the small ends thereof being opposed one to another on the yoke I28. At its outer end, each heel-rest I2I is provided with'an inverted U -shaped extension or apron I2I' which serves to shield the yoke I28 from glue and thus avoid obstructions to free movement of the rests I2I thereon. By means of an interposed spring I22, the rests I2I are suitably biased so as to follow the clasping arms 68 in their swinging movement, stops I23 serving to limit the outward travel of the heel-rests I2 I, as best'seen in Figures '7 and 7 Mounted on the shaft H2, is a glue-transfer or printing roll I24 of sponge-rubber or the like. The position, of the printing roll I24 in the machine bears a definite relationship to the refer-. ence point d of the carriage C when the latter is in its initial position, which relationship will more particularly be presently pointed out. It

' sufiices here merely to say that the roll I 24 is preferably spherical in shape, is very elastic, and has the property of carrying a film of glue on its peripheral surface.

The roll I24 is secured at its opposite ends to respective hubs I25 mounted on and secured to the shaft II2. Each hub I25 is equipped with a ratchet-wheel or gear I26. Adjacent each hub- I25, is a gear I21 journaled on the shaft H2 and carrying a pawl I28, biased by a spring I29, for co-operating with its adjacent ratchet wheel I26, as best seen in Figures 7 and 8.

Each gear I21 has toothed cooperation with a rack I38 located in a channel or recess I3I formed in the under side of the adjacent rib 58 of the corresponding side-bar56 or 56', as the case may be, of the carriage C. Each rack I38 is swingably mounted at its forward end on a pin I32 mounted in the rib-walls, and the free or rearward end of the rack I38 is biased upon its co-operating gear I21 by means of a tensional mengber or leaf-spring I 33, as best seen in Fig ure I The shaft H2 is extended at each end-through the respective bearings II3. On one so-extended end of the shaft I I2 is secured a gear I34, which turns with the shaft H2 and has co-operation with a subjacent gear I secured to one end of a shaft I 36 extending transversely between the glue basin side walls 30 and journaled in suitable bearings I31 respectively provided in the joint between the respective side basin wall 30 and the side frame walls 34. I

On the shaft I36 is secured a glue-feeder roll I38 of suitable material adapted to turn with the shaft I36; the roll I38 is in registration with, and has a contour complementary to, the printing roll I24 for feeding the glue 33 from the glue basin B to the surface of the printing roll I24; the gears I34, I35, are preferably selected so as to drive the rolls I24, I38, at the same peripheral speed.

At the other extended end of the shaft H2 is a gear I39, which also turns with the shaft H2 and has co-operation with a gear I40 secured to one end of a shaft I4I which extends transversely between, and likewise freely through apertures I42 provided for the purposes in, the

side frames 34, as best seen in Figure 7.

The respective extreme ends of the shaft I4I are journaled in bearings. I43 provided in also respective side arms I44 of a yoke I44, each arm I44 being swingably mounted, as at I45, on the correspondingly adjacent extreme end of the shaft II2,as best seen in Figures 7 and 8. The free end of each arm I44 has an eye I46 through which works the shank of a thumb-screw or bolt I41 adjustably threaded through a bracket I48 projecting from the adjacent side frame 34. The threaded portion of the bolt I4! ends in a shoulder I49 which bears on one side of the lever eye I46. The shank of the bolt I47 is also threaded and carries a nut I50; a spring I5I is interposed between the nut I50 and the eye I46 for tensionally biasing the same against the shoulder I49, as best seen in Figure 6. 1

Secured to the shaft I4:I for rotation therewith, is a wiper roll I52 which is located in registration with, and has a contour complementary to, thefeeder roll I38, the respective gears I39, I40, being proportioned to drive the rolls I38, I52, at about the same peripheral speed. By suitably adjusting the respective bolts I41, however, the periphery of the Wiper roll I52 may be spaced suitably from the periphery of the feeder roll I38 for predetermining thev thickness of the film of glue onthe latter and thus, in turn, regulating the quantity of glue fed from the roll I38 to the transfer roll In its normal or initial position, as shown in Figures 4 and 8, the carriage C is disposed with its front rollers 62 abutting the forward stops 40 of the ways 4| in the side frame rails 35, 38; the pins I I8 of the heel-rest lifter F are engaged in the grooves I IE!- on the under side of the carriage C, and the beam H5 is engaged in the detent III of the latch-lever I01, whereby the carriage C, pivoting on the frontrollers 62, is tilted upwardly toward the rear with the back rollers 65 suspended at the level of the top flanges 31 of the side rails 35, 38, in registration. with the notches 46 andv immediately in front of the upper dogs 54.

'Also, the foot pedal '1 being free, the counterweight I4 has pulled the lever I5 and its pitman I6 to forward or retracted position. whereby the pitman head 89, engaged with the crank 81, has swung about the shaft 85 as a center and landed on the rest.92, the rotation of the shaft 85 meanwhile having disposed the arms 84 at their rearward swung position and having thereby,

through the respective combination-links 8I, moved the cross-head I4 and its attached wedges "I5 to corresponding rearward position, so that the latter are thereby disengaged from the clasping arms 68.

'Likewise, the elevated position of the beam II5 of the lifter F has disposed its carried yoke I20 immediately under the clasping arms 68 (notwithstanding that the carriage is atthis time also in lifted position), so that the heelrests I2I are disposed between the clasping arms 08 with the topmost part of the heel-rests I2I in horizontal alignment with the work-support d of the masking member D. The masking member D, it may here be said, has sufficient elastic or tensional bias for moreover swinging the clasping arms 58 to wide-apart or so-called heel-receptive position, as shown in Figures 4 and 7".

Here it may be said that the particular position of the glue transfer or printing roll !24 ,relative to the carriage C is such that, when the carriage C is in its above-described lifted position, the plane of the work-support dis spaced substantially above the top of the printing roll I24, but with th reference point d located rearwardly a suitable distance from, that is to say, approximately half of a radius of, the axis of the roll I24. It may \be also pointed out that, notwithstanding the elevated position. of the carriage C, the racks I30, pivoting about the pins I32 under bias of the springs I33, continue to have functional engagement with the respective gears I21.

The above description of the normal or initial position of the machine will best beunderstood by an examination of Figures 1, 4, and 6.

Proceeding now to a description of the use of the machin of my invention, as a first step the operator mounts the heel H in inverted position in the machine by placing the rear edge I of the heel on the reference point d of the work-support d; next the operator places the heel side edges e, g, on the respective heel-rests MI, and then steps on the foot pedal I. The downward stroke of the pedal I effects a rearward stroke of the pitman IE, but since the carriage C, being blocked by the dogs 54, cannot for the moment be moved, the pitman I6 rotates the shaft through the crank 81, meanwhile departing from the rest 82; the rotation of the shaft 85 swings the arms 84, 84', forwardly, whereby, through the respective composite links 80-8}, the cross-head I4 and its carried wedges I5 are shifted also forwardly until the wedges I5 are engaged with the respective clasping arms 58. Continued forward movement of the wedges I5 then causes the arms 63 to swing or approach one toward the other, the ends 10 thereof likewise shiftin the heel-rests I2I, which pass under the respective heel edges e, 9, thereby lifting the same into horizontal alignment with the groove I3. Upon further movement of the wedges 15, the arms 58 function to cause the member D to engage upon and fully embrace the heel are e, Lg, so that, as the masking rib d passes under the heel edges e, j, g, the peripheral margin of the heel cup 0/. is masked a predetermined distance, as c, defined by the width of the upper face of the masking member d, that is to say, the lower wall of the groove I3. Meanwhile, the heel-edge e, f, g, is engaged between the V-shaped walls of the groove 13,

whereby the heel H is locked in'place and sup:- ported securely on, and for movement with, the carriage C. I

The heel I-I having been thus looked, as it may be said, on the carriage C, the springs 82- yield for permitting elongation of the respective composite links 80--8I as the rotation of the shaft 85 swings the arms 84, 84', toward their respective forward positions. Meanwhile, the latch 94 yields to engagement by the end of the adjacent link-part 8| that is attached to the arm 84 until, when the latter has swung the part 8| upwardly sufiiciently for the purpose, the latch 94 slips under the part 8| and latches the same and the crank-shaft 85 in completely rotated-final position, whereby the arms 68 are tensionally biased upon the heel H, as best seen in Figure 2.

As the shaft 85 approaches its said final position, the end of the adjacent link-part BI that is attached to the arm 84 engages the toe I04 and swings the lever I02, .and thus, in turn, through the rod I05, trips the latch lever I01 for releasing the detent III from the carriage" lifter F, thereby permitting the carriage C to drop from its lifted position; in so doing, the carriage C tilts or pivots on the front rollers 62 as the-rear rollers 65 descend through the slots 46 onto the floor .of the respective-ways 4|; meanwhile, the

, pins H8, working in the grooves H9, permit the heel-rest lifter F to descend by gravity until the beam I I5 rests on the stops I I6, whereby theheelrests I2I are substantially lowered below the tangential plane of the roller I 24, all as best seen in Figures 7 and 8.

As the carriage C tilts to its lowered position. the arm-ends III, the anchor I2, and'the curved masking member D all sink into the elastic body of the roll I24, while between these several members the roll I24 protrudes upwardly into flattened engagement with more -or less of the concave surface of the closed end of the heel cup a. As will presently more fully appear, the periphery of the'ro'll I24 is covered with a film of glue, and the glue which is on that portion of the periphery of the roll I24 which comes into contact with the heel-cup a, is adherently transferred thereto from the roll I24. I

It will be observed that up to this time the horizontal motion of the carriage C has been delayed,

due to the concurrent lost motion between the- I 26, rotate the shaft I I2 and likewise the transferroll I24, which latter, it may here be said, has by this means, a peripheralspeed substantially equal to the rearward velocity of the carriage C and its supported heel 1-1. As the roll I 24 is thus revolved, additional glue-covered periphery of the roll I24 is presented to the surface ofthe heel cup a, and at the same time the rearward translation of the heel H relative'to the axis of the roll I 24 presents additional heel-cup surface to the roll I24, whereby the central portion of the heel-cup a is printed, as may be said, with a film of glue b. This glue-transferring operation is accomplishedduring the approximately first half of the rearward stroke of the carriage C. The revolution of the roll I24 continues, however, until, the carriage C arrives at the end of its rear- .its under side toward'the'wiper roll MI.

ward stroke, whereby the roll I24 is caused to again present a glue-carrying surface on its upper side in preparation for the next heel-gluing cycle of operation of the machine.

6 During this glue-printing operation, however,

the masking member D prevents the contact of the roll I24 with the edge e, f, g, and margin 0 of the'heel-cup a. Such portions of the heel-cup a, therefore, remain free of glue, in accordance with my invention. Likewise, and in further accordance with my invention, the film of glu 2), so transferred or printed on the heel-cup a, is of uniform thickness, which is accomplished as follows,

As the transfer roll I24 is revolved, the feeder roll I 38 and wiper roll I52 are driven in unison with the roll. I24 through the respective geartrains I34 I35 and I39I4Il. 'The underside of the feeder roll I 38 is immersed in the body of glue 33, a portion of which attaches itself to the roll I38. The rotation of the roll I38 is from The wiper roll I52'is driven in the opposite direction to the roll I38 and is spaced therefrom a suitable distance (too small to be observed" in the drawings). The resulting wiping action is to allow merely a predetermined but uniform thickness or film of glue to remain. on the upper ide of the roll I38.

roll I52 is returned to the glue body 33. The

feeder roll l38andtransfer roll I 24 are driven at the same peripheral speed,and since they are tangentially engaged, the film of'glue on the roll I 38 is transferred to the periphery of the roll I24 and thence .to the heeLcup a with the same uniformity and thickness as determined by the setting of the wiper roll I52; Y e

As the carriage C continues its rearward movement, the rear rollers pass under the respective dogs 49, which swing up freely to permit the" rollers 85 to pass'and then drop down again, for purposes presently mor fully appearing. The

stationary stop- 38 is so'positioned on the rail 35 the arm 84, togetherwiththe associated links 8|, will still be held upwardly in the position in which they were then latched, with the result that the heel H will still be clamped in place.

As the operator undertakes-torelease the pedal 1', however, the heel H is manually grasped and held so that it can be lifted out of the machine immediately upon being released. Thereupon, when t e operator releases the pedal 1. the pitman I6 begins to return to its initial position under the impulse of the counter-weight I4. During the initial stage of this return movement, however, the arms 84, being unlatched, Will swing downwardly and the associated links will shift longitudinally rearwardly under the influence'of the springs 82, therebyintroducing at the beginning of the return stroke an initial amount of lost motion between the pitman I6 and the carriage C; the return movement of the latter being delayed While the pitman I6 concurrently r0 tates the shaft 85 to its initial position relatively to the carriage C. This motion, through the links 80, 8|, and cross-head I4, releases the wedges l5 Theexcess glue removed by the wiper from the claspin arms 68, which are, in turn, under elastic bias of the member D, released from the heel H and shifted apart, thus permitting the operator to remove the heel H from the machine.

When the crank 85 has resumed its initial position on the carriage C, the pitman l6 acts to shift the carriage C forwardly. During the initial stage of the return movement of the carriage C, the rollers 65 ride up on the dogs 49 and the rearward end of the carriage C is elevated to initial position. As the rollers come up, they strike the under side of the dogs 54, which swing freely upwardly, and then drop down behind the rollers 65 into initial stop-forming position as the carriage C reaches the end of its return stroke.

The co-operation of the several instrumentalities hereinbefore described impart, as will be seen, a defined path of motion to the carriage C. It being borne in mind that the heel H is supported on the carriage C so as to position the concave closed end of the heel-cup a in registration with the convex periphery of the roller I24, the motion of the carriage C is then such as to, in the first instance, tilt the carriage from its elevated initial position to a lowered position so as to bring the closed end of the cup a into glueprinting engagement with the stationary roller I24, then to rollably engage the open end Of the cup a upon the roller I24, and finally to return the carriage to its initial position in an elevated path disposed substantially above the tangential plane of the roller I24, in such manner as to wholly avoid any wiping or sliding engagement of the carriage and its supported work with the roller.

It will be seen that my invention accomplishes its intended purposes, and it will be understood that changes and modifications may be made in the details of form, construction, arrangement, and combination of parts hereinbefore described without departing from the nature of my invention and the scope of the appended claims.

Havin thus described my invention, what I claim and desire to secure by Letters Patent is,

1. In a heel-gluingmachine, in combination, a glue-transfer roller, and heel-supporting means upwardly and forwardly swung position, stationary stop-means for engaging the crank-latching means during swing of the crank for unlatching the carriage, means responsive to movement of the carriage and thereby unlatching the crank, and means for restoring the carriage to elevated latched position,

5. In a heel-gluing machine, the combination, with a shiftable carriage, of clasping arms actuable for engaging a heel on the carriage, reciprocable actuating means for motivating the carriage, and a lost motion device between the actu ating means and the carriage operable for con including a carriage tiltable from raised to lowered position in the plane of the roller for engaging the same with a sup orted heel.

2. In a heel-gluing machine, in combination, a glue-transfer roller, heel-supporting means including a carriage tiltable from raised to lowered position in the plane of the roller for engaging the same with a supported heel, and means for latching the carriage in raised position.

3. In a heel-gluing machine, in combination, a glue-transfer roller, a carriag tiltable from elevated to lowered position in the plane of the roller, heel-clasping members actuable for supporting a heel on the carriage, means for normally latching the carriage in elevated position, and means responsive to heel-clasping actuation of said members for unlatching the carriage from elevated position.

4. In a heel-gluing machine, in combination, a glue-transfer roller, a carriage tiltable from elevated to lowered position in the plane of the roller, said carriage being adapted when in such lowered position to slide rearwardly, heelclasping members actuable for securing a heel on the carriage, means for normally latching the carriage in elevated position, actuating means for said clasping members including a crank swingable upwardly and forwardly on the carriage, means for latching the crank in such currently engaging said arms on a heel while delaying motion of the carriage during initiation of the stroke of the actuating means, and for concurrently releasing said arms from the heel while delaying motion of the carriage at the termination of the stroke of the actuating means.

6. In a heel-gluing machine, the combination, with a shiftable carriage, of clasping arms actuable for engaging a heel on the carriage, reciprocable actuating means for motivating the carriage, and a lost motion device between the actuating means and the carriage operable for concurrently engaging said arms on a heel while delaying motion of the carriage during initiation of the stroke of the actuating means, and for concurrently releasing said arms from the heel while delaying motion of the carriage at the termination of the stroke of the actuating means, said lost motion device including means for restraining motion of the carriage pending engagement of said arms on the heel.

'7. In a heel-gluing machine, in combination, a glue-transfer roller, a tiltable carriage shiftable alternately in respective raised and lowered positions, means responsive to movement of the carriage in raised position for latching the same in said position, means including heel-clasping members actuable for supporting a heel on the carriage, means responsiveto actuation of said clasping members for latching said members in heel-clasping position, means also responsive to actuation of said members for unlatching the carriage from raised position, said glue-transfer roller being adapted for engaging said heel when the carriage is shifted in lowered position, means I responsive to terminal movement of the carriage in lowered position for unlatching said clasping members, and means responsive to initial movement of the carriage in alternate direction for lifting the same to raised position.

8. In a machine for applying glue to the concave surface of the cup of a heel, in combination, a glue-transfer roller, a reciprocable carriage tiltable from elevated to lowered position in the plane of the roller, means for positioning a heel on the elevated carriage with the concavity of the heel-cup in registration with the convex surface of the roller, means for tilting the carriage to lowered position for engaging the closed end of the heel with the roller, and means for moving said carriage in lowered position for effecting rolling engagement of the open end of said heel with the roller.

9. In a heel-gluing machine, in combination, means for applying glue to the cup of a heel, reciprocable means including a member movable for positioning the heel with respect to the glueapplying means, said member having a groove for receiving the arc of said heel, means for guiding the arc of the heel into said groove responsive to heel-positioning movement of said member, and means responsive to movement of ing the masked heel crosswise over the gluing wise over the gluing means for applying a film of glue to an exposed portion of the cup of the heel.

12. In a heel-gluing machine, in combination, means including a cushion-member for gripping a heel at the periphery thereof and concurrently by said cushion-member masking the marginal portion ofthe cup of the heel, gluing means, and means for shifting the gripped'and masked heel crosswise over the gluing means forapplying a film of glue to an exposed portion of the cup of the heel.

13. In a heel-gluing machine, in combination, means including a cushion-member having a groove in its inner face for gripping a heel at its periphery and concurrently I disposing the cushion-member in heel engagement at its said groove for masking the marginal portion of the cup of the heel, and means for applying a film of glue to an exposed portion of the cup of the heel.

14. In a heel-gluing machine, in combination, means including a cushion-member for supportingly engaging a shoe heel at a point upon its periphery opposite its breast and having extensions for engaging the periphery of the heel intermediate its breast and said point of supportengagement, means for engaging said cushionmember-extensions with the heel for masking the peripheral portion of the cup thereof, and means for applying a film of glue to an exposed portion of the cup of the heel.

15. In a heel-gluing machine, in combination, means including a cushion-member for supportingly engaging a shoe heel at a point upon its periphery opposite its breast and having extensions for engaging the periphery of the heel intermediate its breast and said point of supporting-engagement, means including a pair of swingable companion arms for engaging said cushionmember-extensions with the heel-for masking the peripheral portion of the cup thereof, and means for applying a film of glue to an exposed portion of the cup of the heel.

16. In a heel-gluing machine, in combination, means including a cushion-member for supportingly engaging a shoe heel at a point upon its periphery opposite its breast and having extensions for engaging the periphery of the heel intermediate its breast and said point of supportengagement, means including a pair of pivotally swingable companion arms and shiftable Wedge members for swinging the arms with the cushionmember-extensions attached thereto for engaging with the heel for masking the peripheral portion of the cup thereof, and means for applying a film of glue to an exposed portion of the cup of 'the heel. I

17. In a heel-gluing machine, in combination, front and rear rests for supporting a heel in an inverted position with its cup presented down Wardly, the rear rest being swingable and the front rest engaging the heel at a point on its periphery opposit its breast and comprising a cushion-member having extensions for engaging the periphery of the heel intermediate its breast and said point of support, means including pivotally actuable arms for engaging the cushion-memberextensions with the heel for masking the peripheral portion of the cup thereof, means for swinging the rear rest out ofengagement with the heel when said cushion-member is. in cupmasking position, and means for applying a film of glue to an exposed portion of the cup of the heel following swinging of said rear rest.

18. In a heel-gluing machine, in combination, glue-applying means, means for masking the peripheral portion of the cup of aheel, said masking means including a carriage for supporting the heel over said glue-applying means, and means for actuating the carriage crosswise over the glueapplying means for engaging the masked heel with the glue-applying means.

19. In a heel-gluing machine, incombination, means including a glue-applying roll, means for masking the peripheral portion of the cup of a heel, said masking means including a carriage for supporting the heel over said rollfand means for actuating the carriage for engaging the masked heel with the roll and for Shifting the heel while in engagement with the roll for application of glue to the exposed portion of its cup.

20. In a heel-gluing machine, in combination, means including a glue-applying roll, means for masking the peripheral portion of the cup of a heel, said masking means including a carriage for supporting the heel for movement over and relatively to the roll, and means for actuating the carriage for first engaging the heel at the arc of its cup with the roll and then shifting the heel relatively to the roll for application of glue to an exposed portion of the cup of the heel.

21. In a heel-gluing machine, in combination, means including a glue-applying roll, a shiftable carriage, means mounted on and movable with the carriage for both removably securing the-heel to the carriage and 'for masking the marginal portion of its cup, means for actuating the carriage for first engaging the heel at the arc of its cup with the roll'and then shifting the heel relatively to the roll for application of glue to an exposed portion of the cup of the heel, and means for releasing said securing means for removal of the heel.

22. In a heel-gluing machine, in combination, means including a cushion-member for engaging respective shoe-heels of diiferent sizes at a point upon its periphery opposite the breast and having extensions for engaging the periphery of the heel intermediate its breast and said point of support, means including companion arms for yield: ingly engaging said cushion-member-extensions with the selected heel for masking the peripheral portion of the cup thereof, means for yieldingly actuating the arms into masking position, and means for-applying a film of glue to an exposed portion of the cup of the particular heel.

23. In a heel-gluing machine, in combination,

' means including a cushion-member for engaging a shoe-heel at a point upon its periphery opposite the breast and having extensions for engaging the periphery of the heel intermediate its breast and said point of support, means including companion swingable arms for yieldingly engaging said cushion-member-extensions with the heel for masking the peripheral portion of the cup thereof, means for yieldingly actuating the arms into masking position, means for latching said arms in heel masking engagement, and means for applying a film of glue to the cup of the engaged heel.

24. In a machine for applying glue to the concave face of the cup of a heel, in combination, a glue-transfer member having a convex surface, means for positioning a heel with the concavity of the heel-cup in registration with the convex surface of the transfer member, and means for shifting the heel-cup relatively to the transfer member.

25. In a heel-gluing machine, in combination, a glue-transfer roller, a reciprocable carriage,

means for securing a heel in inverted position on 15' the carriage, and means for swinging the carriage for first engaging the heel at its cup with the roller and then shifting the heel relativel to, and

with its cup in engagement with, the roller.

26. In a heel-gluing machine, in combination, a glue-transfer roller, a reciprocable carriage, means for securing a. heel in inverted position on the carriage, means for swinging the carriage for first engaging the heel at its cup with the roller'and then shifting the heel relatively to, and with its cup in engagement with, the roller, and means for revolving the roller in synchronism with movement of the carriage.

WALTER A. THUM. 

